I’m confused, how did Superman end up back in suit with underwear?

I remember him being reborn but the he gave his suit to Lois but now Jon is back and his suit was never given back I’m guessing?

“Rebirth” Superman died. We got our origional back, and i guess fans demanded classic uniform.

Like you said, he gave his new suit to Lois so he dusted off the old spandex to use in the meantime. I’m guessing they never planned to have him switch back.

Because good always wins